(S)-7-[5-(acetylaminomethyl)-2-(3-methoxy-5-vinylbenzyloxy)-phenylcarbamoyl]-7-allyloxy-heptanoic acid methyl ester 在
RuCl2(1,3-dimesityl-imidazolidin-2-yl)(PCy3)(=CHPh) 作用下,
以
1,2-二氯乙烷 为溶剂,
反应 26.0h,
以55%的产率得到(S)-6-[7-(acetylaminomethyl)-19-methoxy-11-oxo-3,13-dioxa-10-aza-tricyclo[15.3.1.04,9]henicosa1(21),4(9),5,7,15,17,19-heptaen-12-yl]-hexanoic acid methyl ester